170 citations · 934 across the 17 of their papers we have counts for
17 papers
Odin observations of ammonia in the Sgr A +50 km/s Cloud and Circumnuclear Disk
Aa. Sandqvist, Å. Hjalmarson, U. Frisk +4
Context. The Odin satellite is now into its sixteenth year of operation, much surpassing its design life of two years. One of the sources which Odin has observed in great detail is…
Isotopic ratios of H, C, N, O, and S in comets C/2012 F6 (Lemmon) and C/2014 Q2 (Lovejoy)
N. Biver, R. Moreno, D. Bockelée-Morvan +15
The apparition of bright comets C/2012 F6 (Lemmon) and C/2014 Q2 (Lovejoy) in March-April 2013 and January 2015, combined with the improved observational capabilities of submillime…
On the accretion process in a high-mass star forming region - A multitransitional THz Herschel-HIFI study of ammonia toward G34.26+0.15
M. Hajigholi, C. M. Persson, E. S. Wirström +8
[Abridged] Our aim is to explore the gas dynamics and the accretion process in the early phase of high-mass star formation. The inward motion of molecular gas in the massive star f…
Herschel HIFI observations of O toward Orion: special conditions for shock enhanced emission
Jo-Hsin Chen, Paul F. Goldsmith, Serena Viti +18
We report observations of molecular oxygen (O) rotational transitions at 487 GHz, 774 GHz, and 1121 GHz toward Orion Peak A. The O2 lines at 487 GHz and 774 GHz are detected at…
Upper limits to interstellar NH+ and para-NH2- abundances. Herschel-HIFI observations towards Sgr B2 (M) and G10.6-0.4 (W31C)
C. M. Persson, M. Hajigholi, G. E. Hassel +12
The understanding of interstellar nitrogen chemistry has improved significantly with recent results from the Herschel Space Observatory. To set even better constraints, we report h…
Hydroxyl, water, ammonia, carbon monoxide and neutral carbon towards the Sgr A complex
Roland Karlsson, Aage Sandqvist, Åke Hjalmarson +4
We observed OH, HO, HN, CO, and C towards the +50 km/s cloud (M-0.02-0.07), the CND and the +20 km/s (M-0.13-0.08) cloud in the Sgr A complex with the VLA, Odin…